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E2PR4 viterbi detector and method for adding a branch metric to the path metric of the surviving path after selecting the surviving path

机译:E2PR4维特比检测器和在选择生存路径之后向生存路径的路径度量添加分支度量的方法

摘要

An E2PR4 Viterbi detector includes a recovery circuit and receives a signal that represents a sequence of values, the sequence having a potential state. The recovery circuit recovers the sequence from the signal by identifying a surviving path to the potential state and, after identifying the surviving path, adding a modified branch metric to the path metric of the surviving path to generate an updated path metric for the potential state. Updating the path metric of the surviving path after the surviving path is selected allows the E2PR4 Viterbi detector to be smaller and/or faster than an E2PR4 Viterbi detector that updates the path metric before selecting the surviving path.
机译:E 2 PR4维特比检测器包括恢复电路,并接收代表值序列的信号,该值序列具有潜在的状态。恢复电路通过识别到潜在状态的生存路径并在识别出生存路径之后,将修改的分支度量添加到生存路径的路径度量以生成针对潜在状态的更新路径度量,来从信号中恢复序列。在选择了生存路径后更新生存路径的路径度量,可以使E 2 PR4维特比检测器小于和/或快于E 2 PR4维特比检测器,在选择剩余路径之前更新路径度量。

著录项

  • 公开/公告号US2008270874A1

    专利类型

  • 公开/公告日2008-10-30

    原文格式PDF

  • 申请/专利权人 HAKAN OZDEMIR;

    申请/专利号US20070903774

  • 发明设计人 HAKAN OZDEMIR;

    申请日2007-09-24

  • 分类号H03M13/23;G06F11/08;

  • 国家 US

  • 入库时间 2022-08-21 20:14:03

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